Difference between revisions 1952675 and 1952676 on enwikiversity

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[[Image:Brorfelde Schmidt Telescope.jpg|thumb|right|250px|The Schmidt Telescope at the former Brorfelde Observatory is now used by amateur astronomers. Credit: [[commons:User:Moeng|Mogens Engelund]].]]
A '''radiation telescope''' is an instrument designed to collect and focus radiation so as to make distant sources appear nearer.
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==Astronomy==
{{main|Keynote lectures/Astronomy}}
(contracted; show full)
|accessdate=2015-03-28 }}</ref> is called '''radiation'''.

Radiation that a particular telescope or a telescope array observes consists of fast moving entities from which information is gathered using spectroscopy, spatial distributions, or temporal distributions. A galaxy cluster that is moving is radiation and an astronomical object to be observed. Entities moving faster than the galaxy such as protons or photons are observables.

==Astrodesy==
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Astronomy/Observatories/Astrodesy|Astrodesy}}
On Earth, telescopes are positioned using [[geodesy]], such fields as surveying, structural geology of the underlying ground, and architecture. The availability of manpower is usually missing for extraterrestrial observatories on the [[Moon/Keynote lecture|Moon]], [[Mars/Keynote lecture|Mars]], or Venus. On the [[International Space Station]], manpower is often available for instrument control and use.

==Instruments==
{{main|Instruments}}
(contracted; show full)==Theoretical radiation astronomy telescopy==

'''Def.''' the manufacture and use of telescopes is called '''telescopy'''.

'''Def.''' the manufacture and use of radio telescopes is called '''radiotelescopy'''.

==Sources==
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Astronomy/Sources|Sources}}
[[Image:Horizontal cyclotron with glowing beam.jpg|thumb|center|300px|This image shows a beam of accelerated ions (perhaps protons or deuterons) escaping the accelerator and ionizing the surrounding air causing a blue glow. Credit: Lawrence Berkely National Laboratory.]]
[[Image:Synchrotron light.jpeg|thumb|right|250px|The image shows the blue glow given off by the synchrotron beam from the National Synchrotron Light Source. Credit: NSLS, Brookhaven National Laboratory.]]
(contracted; show full)|doi=10.1051/0004-6361:20065461
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|pdf=http://www.aanda.org/articles/aa/pdf/2007/01/aa5461-06.pdf
|accessdate=2011-12-08 }}</ref>
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==Backgrounds==
{{main|
Astronomy/Backgrounds|Background astronomy}}
[[Image:Red-blue-noise.gif|frame|250px|The frame demonstrates an example of visual snow-like noise. Credit: .]]
In astronomical [[w:Charge-coupled device|CCD]] technology, '''background''' is usually referred to the overall optical "noise" of the system, that is, the incoming light on the CCD sensor in absence of light sources. This background can originate from electronic noise in the CCD, from not-well-masked lights nearby the tele(contracted; show full)incompatible with rocks that are normally found at the surface of the Earth.<ref name=Blanco>Mario Blanco Cazas, [http://fcpn.umsa.bo/fcpn/app?service=external/PublicationDownload&sp=227 "Informe Laboratorio de Rayos X &mdash; FRX-DRX"] (in Spanish), Universidad Mayor de San Andres, Facultad de Ciencias Geologicas, Instituto de Investigaciones Geologicas y del Medio Ambiente, La Paz, Bolivia, September 20, 2007. Retrieved October 10, 2007.</ref>
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==Shelters==
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Astronomy/Observatories/Shelters|Shelters}}
Telescope domes have a slit or other opening in the roof that can be opened during observing, and closed when the telescope is not in use. In most cases, the entire upper portion of the telescope dome can be rotated to allow the instrument to observe different sections of the night sky. Radio telescopes usually do not have domes.

==Spectroscopy==
{{main|Radiation astronomy/Spectroscopy|Spectroscopy}}
(contracted; show full)ssembly has a small refracting objective lens, an image erecting system that uses either image erecting relay lenses or prisms (porro prisms or roof prisms), and an eyepiece that is usually removable and interchangeable to give different magnifications. Other telescope designs are used such as Schmidt and Maksutov optical assemblies. They may have a ruggedised design, a mounting for attaching to a tripod, and an ergonomically designed and located knob for focus control.
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==Observatories==
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Astronomy/Observatories|Observatories}}
[[Image:Champaign-Urbana area IMG 1138.jpg|right|thumb|250px|This equatorial room is at the University of Illinois Observatory. Credit: .]]
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==Lofting technology==
{{main|Lofting technology}}
Many devices for lofting technology have been developed to improve [[Radiation astronomy/Keynote lecture|radiation astronomy]].

==Balloons==
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Astronomy/Balloons|Balloons}}
[[Image:BLAST on flightline kiruna 2005.jpeg|thumb|right|250px|BLAST is hanging from the launch vehicle in [[w:Esrange|Esrange]] near [[w:Kiruna|Kiruna]], [[w:Sweden|Sweden]] before launch June 2005. Credit: [[commons:User:Mtruch|Mtruch]].]]
(contracted; show full)|location=McMurdo Station
|date=December 26, 2012
|url=http://news.yahoo.com/nasa-launches-telescope-toting-balloon-antarctica-christmas-164200686.html
|accessdate=2012-12-26 }}</ref>
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==Aircraft assisted launches==
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Astronomy/Airborne/Launches|Aircraft assisted launches}}
The '''Array of Low Energy X-ray Imaging Sensors''' ('''ALEXIS''') [[X-ray astronomy|X-ray]] telescopes feature curved mirrors whose multilayer coatings reflect and focus low-energy X-rays or extreme ultraviolet light the way [[w:optical telescope|optical telescope]]s focus visible light. ... The Launch was provided by the [[w:United States Air Force|United States Air Force]] Space Test Program on a [[(contracted; show full)<!-- categories -->
[[Category:Astronomy learning projects/Lectures]]
[[Category:Astronomy/Lectures]]
[[Category:Instruments/Lectures]]
[[Category:Materials sciences/Lectures]]
[[Category:Radiation astronomy/Lectures]]
[[Category:Resources last modified in July 2018]]
[[Category:Technology/Lectures]]